High-speed wheel-and-belt conveyor for transport-and-dumping bridges, spreaders and movable loaders

The development of an open-pit mining method is characterized by an increase in the depth of quarries and an increasing intensification of production processes. At the same time, the share of transport costs reaches 60 — 70% of the total production costs. The introduction of the most advanced in-line technology in the development of deposits with rock and semirock and ore requires the creation of highly efficient means of continuous transport. Conveyor belts in the usual version provide high performance, however, in accordance with the norms of technological design, the maximum permissible size of pieces of mining cargo should not exceed 300 mm. Secondary crushing of mining cargoes prepared for transportation by drilling and blasting in mobile crushing units significantly increases capital and operating costs. Belt conveyor proposed by prof. Spivakovsky A.O., provides the ability to move almost the entire rock mass prepared by primary blasting without the use of crushing aggregates.The speed of the belt-wheel conveyors cannot be more than 0,6 m/s, which was confirmed by the operation of the first samples of conveyors. However, even at the specified values of the conveyor speed, its operation is accompanied by large shock loads and noise at the end stations. It should also be noted that when the supports move from the upper guides to the lower ones and vice versa, the direction of rotation of the rollers reverses, which is associated with the friction of the rollers and segments of the running tracks. The limited speed of the conveyor makes it difficult to use it for transport-dump bridges, spreaders and mobile reloaders. In the proposed design of the conveyor, the traverses of the supports are additionally spring-loaded to the guides of the rollers. In this case, the main load-carrying rollers move along the outer contour of the guides. The speed of movement can be increased to 3 — 6 m/s, as shown by checking the current model of the conveyor.

Mulukhov K.K., Beslekoeva Z.N., Vyskrebenets A.S., Sergeyev V.V. High-speed wheeland-belt conveyor for transport-and-dumping bridges, spreaders and movable loaders. MIAB. Mining Inf. Anal. Bull. 2020;(11-1):169-177. [In Russ]. DOI: 10.25018/0236-1493-2020-111-0-169-177.

Muluhov K.K.¹, Dr. Sci. (Eng.), Professor;
Beslekoeva Z.N.¹, Cand. Sci. (Eng.), Assistant Professor, bezalina60@yandex.ru;
Vyskrebenets A.S.¹, Dr. Sci. (Eng.),Professor;
Sergeyev V.V.¹, Dr. Sci. (Eng.), Professor;
¹ North Caucasian Institute of Mining and Metallurgy (State Technological University), Vladikavkaz, Russia.

Muluhov Kazbek1, ph.: 8(928)685—03—25.

1. Golik V.I., Razorenov Yu.I., Karginov K.G. Basis of sustainable development of the RSO-Alania-mining industry. Sustainable Development of Mountain Territories. 2017. no. 2. pp. 163—172. [In Russ]

2. Golik V.I., Sobolev A.A., Dzaparov V.H., Harebov G.Z. Prospects for development of Sadon deposits. Sustainable Development of Mountain Territories. 2018. T. 10. no. 3. pp. 420—426. [In Russ]

3. Golik V.I., Razorenov Yu.I., Karginov K.G. Basis of sustainable development of the RSO-Alania-mining industry. Sustainable Development of Mountain Territories. 2017. T. 9. no. 2. pp. 163—171. [In Russ]

4. Dedegkaev A.G., Khmara V.V., Lobockij Yu.G., Elbakyan V.L. Ensuring environmental safety of mountain territories in the zone of operation of processing plants. Sustainable Development of Mountain Territories. 2017. T. 9. no. 1. pp. 65—73. [In Russ]

5. Spivakovskij A.O., Goncharevich I.F. Special’nye transportiruyushchie ustrojstva v gornodobyvayushchej promyshlennosti [Special transport devices in the mining industry]. Moscow: Nedra, 1985. p. 128. [In Russ]

6. Spivakovskij A.O. Lentochnye konvejery v gornoj promyshlennosti [Belt conveyors in the mining industry]. Moscow: Nedra, 1982. pp. 349. [In Russ]

7. Spivakovskij A.O., Potapov M.G. Transportnye mashiny i kompleksy otkrytyh gornyh razrabotok [Transport machines and complexes of open-pit mining]. Moscow: Nedra, 1983. p. 383. [In Russ]

8. Sanakulov K.S., Shemetov P.A. Development of cyclic flow technology based on steeply inclined conveyors in deep quarries. Gornyj zhurnal. 2011. no. 2. pp. 34—37. [In Russ]

9. Galkin V.I. i dr. Sovremennaya teoriya lentochnyh konvejerov gornyh predpriyatij [Modern theory of belt conveyors of mining enterprises]. Moscow: MGGU, 2005. p. 342. [In Russ]

10. Sheshko E.E. Steeply Inclined belt conveyor with a pressure belt at mining enterprises. Gornoe oborudovanie i elektromekhanika. 2008. no. 12. pp. 28—33. [In Russ]

11. Kartavyj A.N. Steep-Slope belt conveyors for the mining industry. Gornoe oborudovanie i elektromekhanika. 2006. no. 10. pp. 22—26. [In Russ]

12. Monastyrskij V.F., Kiriya R.V., Braginec D.D., Nomerovskij D.A. Steep-Slope belt conveyors for transportation of bulk cargo in the mining industry. Gornyj zhurnal. 2013. no.12. pp. 78—81. [In Russ]

13. Panferov M.V. Steep-Slope lift for delivery of large-sized rock mass from deep quarries. Markshejderiya i nedropol’zovanie. 2011. no. 3. pp. 15—16. [In Russ]

14. Galkin V.I. Features of operation of tubular belt conveyors. Gornoe oborudovanie i elektromekhanika. 2008. no. 1. pp. 7—12. [In Russ]

15. Dmitriev V.G., Efimov V.S. Features of the movement of the tubular conveyor belt along a curved section of the route in the horizontal plane. Izvestiya vuzov. Gornyj zhurnal. 2008. no. 3. pp. 99—102. [In Russ]

16. Savio S.H. Rotating Escalators upon Deletions for Improving Online Bicriteria Load Balancing Tse / 12th International Symposium on Pervasive Systems, Algorithms and Networks Year: 2012, pp. 182—191.

17. Hejin Yang, Youyi Wang, Freddy Lim. Design of an energy sharing dual-escalator system based on the dual active bridge converter. International Electric Machines & Drives Conference Year: 2013, pp. 1424—1429.

18. Londono J.G., Knights P., Kizil M. Review of in-pit crusher conveyor application. Austrailian Mining Technology Conference, 2012, pp. 63—82.

19. Luchinger P., Maier U., Errath R.A. Active front end technology in the application of a down hill conveyor / Cement Industry Technical Conference, 2006, pp. 20. [In Russ]

20. Litvin F.I., Fuentes A. Gear Geometry and Applied Theory. Cambridge: Cambridge University Press, 2004. 376 p.

21. Yong-cunGuo, Shuang Wang, Kun Hu, De-yong Li. Optimization and experimental study of transport section lateral pressure of pipe belt conveyor. Advanced Powder Technology. 2016, Volume 27, Issue 4, July 2016, pp. 1318– 1324.

22. Wei Chen, Xin Li. Model predictive control based on reduced order models applied to belt conveyor system. ISA Transactions. November 2016, vol. 65.pp. 350—360.

23. Muluhov K.K. Lentochno-kolesnye konvejery [Belt and wheel conveyors]. Vladikavkaz: Terek, 2000. p. 137. [In Russ]

24. Feodos’ev V.I. Soprotivlenie materialov [Resistance of materials]. Moscow: Nauka, 1986. p. 512. [In Russ]

25. Muluhov K.K. Beslekoeva Z.N. Investigation of unevenness of rotation of a special blade loader for shock-free loading of conveyors with large-sized loads. MIAB. Mining Inf. Anal. Bull. 2016. no. 8. pp. 102—108. [In Russ]

26. Patent RF no. 2383742, 10.03.2010. Muluhov K.K., Beslekoeva Z.N. Lopastnyj pitatel’ konvejera. Opubl. 10.07.2010. Byul. no.19. [In Russ]

27. Muluhov K.K., Beslekoeva Z.N., Sergeev V.V. Belt-wheel conveyors for transportation of large-sized mountain loads. Sustainable Development of Mountain Territories. 2018. T. 10. no. 2. pp. 246—252. [In Russ]